Performance Issue in ViewEngine Customization

I happen to do a poc using with the help of your files.. using 51* mobi foundation for device detection and customize razor view so that it support all view (web => view, mobile => view.mobile.cshtml, tablet => view.tablet.cshtml).

Steps:

1) Put the 51 degree mobi files in AppData

2) Reference to 51 degree mobi foundation dll.

3) Create a custom razor engine by inheriting razor engine. (used same code that is present in your source code).